spread qwiso thin

I have heard the term spread qwiso thin but not sure how that is accomplished.I know you can do this on parchment paper but can this be accomplished while purging in the pyrex dish.I think it can but not sure how.Can someone please explain?

Start out with a large enough dish that the evaporated puddle is thin film.

Put it in a larger dish and warm the pyrex and tilt and rotate it until the puddle flows outward, making it larger and thinner.

Chase it with a heat gun into a thin film.

I use the pyrex baking dishes, rectangular, that are about 10" X 14". I have found the amount of QWISO extract that reduces to 3-4 grams ends up in a thin enough film to purge the ISO. High producing buds yield about 4 grams from frozen material. So I use the extract from one oz per baking dish.

So basiclly use small runs.4 grams or less will make it thin?I don't use heat until the end and than I try to keep the temp at or below 100F.

I see I was not clear. One ounce of high quality buds yields 4 grams of wax/concentrate. I don't use any heat at all, just a fan for drying. But it is really dry here, 5-15% RH.

I see.Can you use a plastic strainer for filtering the qwiso?

You could use a plastic strainer in first pass, to hold back plant matter prior to filtering the solution

qwizoking said:

You could use a plastic strainer in first pass, to hold back plant matter prior to filtering the solution

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Yea that is what I was referring to.Thanks for tha reply.Would it be necessary and would it make a better product if I use one of those micro syringes after I use the coffee filters and if so what kind should I get?

The easiest way I've found to achieve a thin film with QWISO or QWET, is start with a large enough dish so that when the alcohol is gone, the oil is left behind in a thin film.

We use a rotovape in the lab to get rid of most of the liquid, but finish in a Pyrex casserole dish about the size Skepler noted. I've also just covered the dish, with it sitting on a 135F heat mat, and just blown air across the top. The both work, but the air around here has high humidity, and alcohol is hygroscopic, so picks up water and turns the mixture white and cloudy.

When finishing off in a vacuum oven at 125F and -29.5" Hg, I put a sheet of glass over the top of the casserole dish to disperse bumping bubbles spattering the inside of the oven.

How hot does a standard heating pad get?Would this be an option to purge if you preferr heat?I figure on low it probably wouldnt go over 100 degrees or maybe i could use it for the final purge after letting it evaporate naturally with a fan.

The silicone pads we use are good to

joe0508 said:

How hot does a standard heating pad get?Would this be an option to purge if you preferr heat?I figure on low it probably wouldnt go over 100 degrees or maybe i could use it for the final purge after letting it evaporate naturally with a fan.

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The silicone pads that we use are limited to about 400F.

joe0508 said:

How hot does a standard heating pad get?Would this be an option to purge if you preferr heat?I figure on low it probably wouldnt go over 100 degrees or maybe i could use it for the final purge after letting it evaporate naturally with a fan.

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You can also use a seedling warming mat, they are about 100°F, but don't get the pyrex dish nearly that warm. I assume the evaporation with a fan lowers the solution temperature enough it never really warms much until the ISO is nearly gone.

skepler said:

You can also use a seedling warming mat, they are about 100°F, but don't get the pyrex dish nearly that warm. I assume the evaporation with a fan lowers the solution temperature enough it never really warms much until the ISO is nearly gone.

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I have read these seedling warming mats raises the temp of the room by 10 or 20 degrees.I am kinda confused about the way this works.If the room is say 50 degrees does that mean the mat only heats up to 70 degrees max or does the mat heat up to 100 degrees no matter what situation?Also is it a must to use a temp controller with these?

joe0508 said:

I have read these seedling warming mats raises the temp of the room by 10 or 20 degrees.I am kinda confused about the way this works.If the room is say 50 degrees does that mean the mat only heats up to 70 degrees max or does the mat heat up to 100 degrees no matter what situation?Also is it a must to use a temp controller with these?

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The seed mats are a low wattage, uncontrolled heat source. And I have found they do add 10-20° to ambient temperature. Since the alcohol is evaporating, the liquid really doesn't warm up much if at all, until the alcohol is gone. The mat just speeds up the process a bit.